DRV8312 with F28069 ControlCard - motorware lab examples not working!!

shashanka doddamani

Other Parts Discussed in Thread: DRV8312, MOTORWARE

Hello,

I am using DRV8312 with F28069 ControlCard, the GUI control works fine, i am able to control the motor with only GUI.

Now i wanted to test the lab examples given in the "motorware" - C:\ti\motorware\motorware_1_01_00_15\sw\solutions\instaspin_foc\boards\drv8312kit_revD\f28x\f2806xF\projects\ccs5\proj_lab03b

Tested target configuration - OK Successful

Build - OK

Debug - OK

In the debug when i RUN the code - RED LED 2 in contolCard blinks but no response by the motor!!!

1) what is my mistakes?

2) what is the jumper settings to run the lab examples given?

3) I checked where the code gets in to infinite loop, here is the statement in line 333

for(;;)
{
// Waiting for enable system flag to be set
while(!(gMotorVars.Flag_enableSys));

the control gets in to this infinite loop.

Please help me come out of this problem..

Regards

Shashanka

over 9 years ago

0 Jorge Zambada over 9 years ago

TI__Expert 5180 points

You have to enable the system to go past that point:
gMotorVars.Flag_enableSys = 1
In every motorware release, we include a lab handout that guides you through the lab procedure. You can find it here:
C:\ti\motorware\motorware_1_01_00_15\docs\labs\instaspin_labs.pdf
Please take a look at that document and let us know if you have any issues.
-Jorge

0 shashanka doddamani over 9 years ago in reply to Jorge Zambada

Prodigy 195 points

Thanks Jorge. Wow it works!!

0 shashanka doddamani over 9 years ago in reply to shashanka doddamani

Prodigy 195 points

Hello Jorge,

As we are working on DRV8312 kit, we have a doubt on the motor (DT4260-24-055-04) provided with the kit.

Is it Y connected or Delta connected?

When InstaSPIN auto detects the motor parameters, does it assume that the motor is Y connected or delta connected?

Regards

Shashanka

0 Jorge Zambada over 9 years ago in reply to shashanka doddamani

TI__Expert 5180 points

It is Y connected. InstaSPIN measures Rs from line to neutral in a Y equivalent configuration, and for this motor it identifies 0.4 Ohms. If you measure the resistance with a meter, you read 0.8 Ohms, which is 2*Rs if it is Y connected, or Rs if it is Delta connected, therefore the motor is Y connected.

0 shashanka doddamani over 9 years ago in reply to Jorge Zambada

Prodigy 195 points

Thanks Jorge. Sorry for multiple mails!!

0 shashanka doddamani over 9 years ago in reply to Jorge Zambada

Prodigy 195 points

So instaSPIN directly assumes it as Y-connected then.

0 Jorge Zambada over 9 years ago in reply to shashanka doddamani

TI__Expert 5180 points

InstaSPIN doesn't care if it's Delta or Y. So it doesn't assume either or. What it does it identifies the motor as a Y connected motor. If your motor is Delta connected, then whatever parameters you identified with InstaSPIN need to be converted from Y to Delta. But you don't need to do this, unless you want to match the data with the motor manufacturer's data.

-Jorge

C2000™︎ microcontrollers

C2000 microcontrollers forum

DRV8312 with F28069 ControlCard - motorware lab examples not working!!